Belt Conveyor Idler Fault Detection System Based on uwDAS Cable and Fiber Optic Microphone Combined Sensing
Abstract
To address fault detection of belt conveyor idlers under strong interference and long-distance conditions, a detection system combining fiber optic microphones and uwDAS distributed optical cables is proposed. Fiber optic microphones are deployed at high-vibration areas while optical cables are laid along the conveyor belt perimeter. VMD-based noise reduction enables clear fault feature extraction. Results show 350 rad/s phase change at idler fault positions and up to 350× spectral energy increase in microphone signals.
Authors
Y.-L. Xiong, L. Chen, Z.-H. Luo, et al. — Hubei Engineering Research Center of Weak Magnetic-field Detection, China Three Gorges University
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